Results 11 to 20 of about 4,142,479 (322)

On the Stability of Eccentrically Compressed Reinforced Concrete Elements with a Small Eccentricity, Taking into Account the Rheological Properties of Concrete

open access: yesЖелезобетонные конструкции, 2023
In the practice of modern construction, flexible centrally and eccentrically compressed reinforced concrete elements are becoming more common. In this regard, the relevance of studying their work and the mechanism of bearing capacity exhaustion increases.
A. G. Tamrazyan
doaj   +1 more source

The dependence of the appearance of the aircraft on the conditions of the Arctic basing [PDF]

open access: yesINCAS Bulletin, 2019
Positioning on the global political arena of the Arctic Territory as the exclusive economic zone of the Russian Federation requires, first of all, the development of a regional transport network, including cargo and passenger traffic for the sustainable ...
Mikhail Yu. KUPRIKOV   +2 more
doaj   +1 more source

Dibujar fuerzas y cuerpos: una genealogía fragmentaria en la historiografía arquitectónica. École des Beaux-Arts, Marqués de Sade y Siegfried Ebeling= Drawing forces and bodies: A fragmentary genealogy in architectural historiography. École des Beaux-Arts, Marquis de Sade and Siegfried Ebeling

open access: yesCuaderno de Notas, 2023
This article aims to shed light on a conception and representation often overlooked in architectural discipline historiography. It focuses not only on forms and objects but also on forces and bodies. For this purpose, a fragmentary genealogy of conflicts
Víctor Manuel Cano Ciborro
doaj   +1 more source

AKARI's infrared view on nearby stars : Using AKARI Infrared Camera All-Sky Survey, 2MASS, and Hipparcos catalog [PDF]

open access: yes, 2010
--Results-- We found that the (B-V) v.s. (V-S9W) color-color diagram is useful to identify the stars with infrared excess emerged from circumstellar envelopes/disks.
Andrews   +79 more
core   +1 more source

Delta diagrams

open access: yesJournal of Knot Theory and Its Ramifications, 2016
We call a delta diagram any diagram of a knot or link whose regions (including the unbounded one) have 3, 4, or 5 sides. We prove that any knot or link admits a delta diagram. We define and estimate combinatorial link invariants stemming from this definition.
Jablan, Slavik   +2 more
openaire   +2 more sources

From capacity maximization to flagship train optimization: a novel framework for brand-oriented railway timetabling [PDF]

open access: yesRailway Sciences
PurposeThis study investigates the impact of flagship trains on high-speed railway capacity utilization and develops a brand value-oriented optimization framework that balances service quality enhancement with operational efficiency.Design/methodology ...
Huizhang Xu
doaj   +1 more source

Kindred diagrams

open access: yesVestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2023
By a diagram we mean a topological space obtained by gluing to a standard circle a finite number of pairwise non-intersecting closed rectangles along their lateral sides, the glued rectangles are pairwise disjoint. Diagrams are not new objects; they were used in many areas of low-dimensional topology.
openaire   +2 more sources

Planar diagrams

open access: yesCommunications in Mathematical Physics, 1978
The authors describe their method for counting planar Feynman diagrams of quantum field theory. Mathematicians who are not familiar with the current jargon of quantum field theory are likely to find this paper rather difficult to follow. In order to demonstrate the usefulness of their method, the authors calculate the ground state energy of a system of
Brézin, E.   +3 more
openaire   +3 more sources

Stochastic diagrams and Feynman diagrams [PDF]

open access: yesNuclear Physics B, 1985
Abstract We study the relationship between ordinary perturbation theory and perturbation theory obtained from stochastic quantization. We give a simple proof that, except in gauge theories, the several stochastic diagrams of a given topology are together equivalent to the corresponding Feynman diagram.
H. Hüffel, P.V. Landshoff
openaire   +1 more source

On the study of compatibility of friction surfaces

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2016
The friction as competitive process is considered from positions of energy balance equation. Friction surfaces joint work with using this equation is described.
S. V. Fedorov
doaj   +1 more source

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